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View Diary: BREAKING: Meteor airburst over Chelyabinsk (318 comments)

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  •  Shoemaker-Levy 9 was a comet. (0+ / 0-)

    But it's true that an asteroid composed of loose material could be prone to lose some of its constituents to tidal forces as it approaches a massive body.  We don't really know what 2012 DA14 is like though, aside from very rough parameters.  

    Pour yourself into the future.

    by Troubadour on Fri Feb 15, 2013 at 02:21:53 AM PST

    [ Parent ]

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